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/*

 * Copyright (c) 1999-2000 Image Power, Inc. and the University of

 *   British Columbia.

 * Copyright (c) 2001-2003 Michael David Adams.

 * All rights reserved.

 */

/* __START_OF_JASPER_LICENSE__

 *

 * JasPer Software License

 *

 * IMAGE POWER JPEG-2000 PUBLIC LICENSE

 * ************************************

 *

 * GRANT:

 *

 * Permission is hereby granted, free of charge, to any person (the "User")

 * obtaining a copy of this software and associated documentation, to deal

 * in the JasPer Software without restriction, including without limitation

 * the right to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the JasPer Software (in source and binary forms),

 * and to permit persons to whom the JasPer Software is furnished to do so,

 * provided further that the License Conditions below are met.

 *

 * License Conditions

 * ******************

 *

 * A.  Redistributions of source code must retain the above copyright notice,

 * and this list of conditions, and the following disclaimer.

 *

 * B.  Redistributions in binary form must reproduce the above copyright

 * notice, and this list of conditions, and the following disclaimer in

 * the documentation and/or other materials provided with the distribution.

 *

 * C.  Neither the name of Image Power, Inc. nor any other contributor

 * (including, but not limited to, the University of British Columbia and

 * Michael David Adams) may be used to endorse or promote products derived

 * from this software without specific prior written permission.

 *

 * D.  User agrees that it shall not commence any action against Image Power,

 * Inc., the University of British Columbia, Michael David Adams, or any

 * other contributors (collectively "Licensors") for infringement of any

 * intellectual property rights ("IPR") held by the User in respect of any

 * technology that User owns or has a right to license or sublicense and

 * which is an element required in order to claim compliance with ISO/IEC

 * 15444-1 (i.e., JPEG-2000 Part 1).  "IPR" means all intellectual property

 * rights worldwide arising under statutory or common law, and whether

 * or not perfected, including, without limitation, all (i) patents and

 * patent applications owned or licensable by User; (ii) rights associated

 * with works of authorship including copyrights, copyright applications,

 * copyright registrations, mask work rights, mask work applications,

 * mask work registrations; (iii) rights relating to the protection of

 * trade secrets and confidential information; (iv) any right analogous

 * to those set forth in subsections (i), (ii), or (iii) and any other

 * proprietary rights relating to intangible property (other than trademark,

 * trade dress, or service mark rights); and (v) divisions, continuations,

 * renewals, reissues and extensions of the foregoing (as and to the extent

 * applicable) now existing, hereafter filed, issued or acquired.

 *

 * E.  If User commences an infringement action against any Licensor(s) then

 * such Licensor(s) shall have the right to terminate User's license and

 * all sublicenses that have been granted hereunder by User to other parties.

 *

 * F.  This software is for use only in hardware or software products that

 * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1).  No license

 * or right to this Software is granted for products that do not comply

 * with ISO/IEC 15444-1.  The JPEG-2000 Part 1 standard can be purchased

 * from the ISO.

 *

 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.

 * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER

 * THIS DISCLAIMER.  THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND

 * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY

 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,

 * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,

 * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING.  THOSE INTENDING

 * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE

 * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING

 * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.

 * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE

 * IS WITH THE USER.  SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE

 * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY

 * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY

 * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,

 * REPAIR OR CORRECTION.  UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,

 * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE

 * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,

 * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE

 * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO

 * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR

 * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,

 * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR

 * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF

 * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY

 * OF SUCH DAMAGES.  THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT

 * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR

 * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING

 * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,

 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT

 * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE

 * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY

 * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE

 * ("HIGH RISK ACTIVITIES").  LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS

 * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.  USER WILL NOT

 * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING

 * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS

 * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE

 * NOTICE SPECIFIED IN THIS SECTION.

 *

 * __END_OF_JASPER_LICENSE__

 */

/*

 * $Id: jpc_util.c,v 1.1 2003/05/15 01:30:32 ace Exp $

 */

/******************************************************************************\

* Includes

\******************************************************************************/

#include <assert.h>

#include <stdio.h>

#include <string.h>

#include <math.h>

#include <stdlib.h>

#include <stdarg.h>

#include "jas_math.h"

#include "jas_malloc.h"

#include "jpc_fix.h"

#include "jpc_cs.h"

#include "jpc_flt.h"

#include "jpc_util.h"

/******************************************************************************\

* Miscellaneous Functions

\******************************************************************************/

int jpc_atoaf(char *s, int *numvalues, double **values)

{

        static char delim[] = ", \t\n";

        char buf[4096];

        int n;

        double *vs;

        char *cp;

        strncpy(buf, s, sizeof(buf));

        buf[sizeof(buf) - 1] = '\0';

        n = 0;

        if ((cp = strtok(buf, delim))) {

                ++n;

                while ((cp = strtok(0, delim))) {

                        if (cp != '\0') {

                                ++n;

                        }

                }

        }

        if (n) {

                if (!(vs = jas_malloc(n * sizeof(double)))) {

                        return -1;

                }

                strncpy(buf, s, sizeof(buf));

                buf[sizeof(buf) - 1] = '\0';

                n = 0;

                if ((cp = strtok(buf, delim))) {

                        vs[n] = atof(cp);

                        ++n;

                        while ((cp = strtok(0, delim))) {

                                if (cp != '\0') {

                                        vs[n] = atof(cp);

                                        ++n;

                                }

                        }

                }

        } else {

                vs = 0;

        }

        *numvalues = n;

        *values = vs;

        return 0;

}

jas_seq_t *jpc_seq_upsample(jas_seq_t *x, int m)

{

        jas_seq_t *z;

        int i;

        if (!(z = jas_seq_create(jas_seq_start(x) * m, (jas_seq_end(x) - 1) * m + 1)))

                return 0;

        for (i = jas_seq_start(z); i < jas_seq_end(z); i++) {

                *jas_seq_getref(z, i) = (!JAS_MOD(i, m)) ? jas_seq_get(x, i / m) :

                  jpc_inttofix(0);

        }

        return z;

}

jpc_fix_t jpc_seq_norm(jas_seq_t *x)

{

        jpc_fix_t s;

        int i;

        s = jpc_inttofix(0);

        for (i = jas_seq_start(x); i < jas_seq_end(x); i++) {

                s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(x, i), jas_seq_get(x, i)));

        }

        return jpc_dbltofix(sqrt(jpc_fixtodbl(s)));

}

jas_seq_t *jpc_seq_conv(jas_seq_t *x, jas_seq_t *y)

{

        int i;

        int j;

        int k;

        jas_seq_t *z;

        jpc_fix_t s;

        jpc_fix_t v;

        z = jas_seq_create(jas_seq_start(x) + jas_seq_start(y),

          jas_seq_end(x) + jas_seq_end(y) - 1);

        assert(z);

        for (i = jas_seq_start(z); i < jas_seq_end(z); i++) {

                s = jpc_inttofix(0);

                for (j = jas_seq_start(y); j < jas_seq_end(y); j++) {

                        k = i - j;

                        if (k < jas_seq_start(x) || k >= jas_seq_end(x)) {

                                v = JPC_FIX_ZERO;

                        } else {

                                v = jas_seq_get(x, k);

                        }

                        s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(y, j), v));

                }

                *jas_seq_getref(z, i) = s;

        }

        return z;

}